4P4F:
reference: Design of composite inhibitors targeting glutamate carboxypeptidase II: the importance of effector functionalities., Novakova Z, Cerny J, Choy CJ, R Nedrow J, Choi JK, Lubkowski J, Berkman CE, Barinka C, FEBS J. 2015 Oct 13. doi: 10.1111/febs.13557. PMID: 26460595

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).